To check for equivalence, use properties of operations such as the Distributive Property. Two expression are said to be equivalent if they resulted in the same number after evaluation of each. You can both expand and factor expressions to generate equivalent expressions.
A.
9.4 millimeters
B.
12.0 millimeters
C.
21.4 millimeters
D.
30.8 millimeters
A. 33.3%
B. 40%
C. 60%
D. 80%
A. 16m wide
B. 17m wide
C. 14m wide
D. 15m wide
D)
15x17=255
15=12+3 17=14+3